CountryStateCity vs IP Address API
Same instrument, two spec sheets — measured, not claimed.
CountryStateCity vs IP Address API: common questions
Which is more reliable, CountryStateCity or IP Address API?
On our scheduled checks, IP Address API leads on measured uptime — CountryStateCity at —% versus IP Address API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do CountryStateCity and IP Address API need an API key?
IP Address API needs no key, while CountryStateCity requires a free API key. If you want to start calling without signup, reach for IP Address API first.
Can I call CountryStateCity and IP Address API from the browser?
Yes — both CountryStateCity and IP Address API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are CountryStateCity and IP Address API free for commercial use?
CountryStateCity has unclear commercial terms, and IP Address API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.